Abstract
This chapter focuses on the energy and environmental analysis and modelling of a reversible ground-coupled heat pump (GCHP). One of the main innovative contributions of this study is in the achievement and implementation of an energy-operational optimisation device for the GCHP system using quantitative adjustment with a buffer tank and a variable speed circulating pump. Experimental measurements are used to test the performance of the GCHP system at different operating modes. A comparative analysis of the main performance parameters (energy efficiency and CO2 emissions) for both heating and cooling and domestic hot water (DHW) with different operation modes is performed. Additionally, two simulation models of thermal energy consumption in heating/cooling and DHW operation were developed using TRNSYS software. The second objective of this chapter is to present the coefficient of performance of a horizontal GCHP system and the temperature distributions measured in the ground heating season. Finally, a numerical model of heat transfer in the ground is described for determining the temperature distribution in the vicinity of pipes.
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